AudioContext.createOscillator()

Syntax

var audioCtx = new AudioContext();
var oscillator = audioCtx.createOscillator();

Returns

An OscillatorNode.

Example

The following example shows basic usage of an AudioContext to create an oscillator node. For applied examples/information, check out our Violent Theremin demo (see app.js for relevant code); also see our OscillatorNode page for more information.

// create web audio api context
var audioCtx = new (window.AudioContext || window.webkitAudioContext)();
// create Oscillator node
var oscillator = audioCtx.createOscillator();
oscillator.type = 'square';
oscillator.frequency.value = 3000; // value in hertz
oscillator.connect(audioCtx.destination);
oscillator.start();

Specifications

Browser compatibility

See also

• Using the Web Audio API